Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Summary of Goodwill

The following table summarizes the changes in the carrying amount of goodwill for the year ended December 31, 2019 (in millions):

	Americas			EMEA			APAC			Total
Balance as of December 31, 2017	$	1,249.7		$	249.0		$	266.6		$	1,765.3
Acquisitions	—			30.2			16.1			46.3
Measurement period adjustments	12.7			0.1			2.1			14.9
Effect of movements in exchange rates and other	(8.0		)	(13.2		)	(26.8		)	(48.0		)
Balance as of December 31, 2018	$	1,254.4		$	266.1		$	258.0		$	1,778.5
Acquisitions	160.3			11.5			12.7			184.5
Measurement period adjustments	(0.7		)	—			0.4			(0.3		)
Effect of movements in exchange rates and other	3.1			4.6			(1.3		)	6.4
Balance as of December 31, 2019	$	1,417.1		$	282.2		$	269.8		$	1,969.1

Summary of Finite-Lived Intangible Assets

The following tables summarize the carrying amounts and accumulated amortization of intangible assets (in millions):

		As of December 31, 2019
	Useful Life (in years)	Gross Value		Accumulated Amortization			Net Value
C&W trade name	Indefinite	$	546.0	$	—		$	546.0
Customer relationships	1 – 15	1,333.1		(827.5		)	505.6
Other intangible assets	2 – 13	17.2		(6.2		)	11.0
Total intangible assets		$	1,896.3	$	(833.7	)	$	1,062.6
		As of December 31, 2018
	Useful Life (in years)	Gross Value		Accumulated Amortization			Net Value
C&W trade name	Indefinite	$	546.0	$	—		$	546.0
Customer relationships	1 – 15	1,199.7		(637.1		)	562.6
Other intangible assets	2 – 13	32.8		(13.2		)	19.6
Total intangible assets		$	1,778.5	$	(650.3	)	$	1,128.2

Summary of Indefinite-Lived Intangible Assets

The following tables summarize the carrying amounts and accumulated amortization of intangible assets (in millions):

		As of December 31, 2019
	Useful Life (in years)	Gross Value		Accumulated Amortization			Net Value
C&W trade name	Indefinite	$	546.0	$	—		$	546.0
Customer relationships	1 – 15	1,333.1		(827.5		)	505.6
Other intangible assets	2 – 13	17.2		(6.2		)	11.0
Total intangible assets		$	1,896.3	$	(833.7	)	$	1,062.6
		As of December 31, 2018
	Useful Life (in years)	Gross Value		Accumulated Amortization			Net Value
C&W trade name	Indefinite	$	546.0	$	—		$	546.0
Customer relationships	1 – 15	1,199.7		(637.1		)	562.6
Other intangible assets	2 – 13	32.8		(13.2		)	19.6
Total intangible assets		$	1,778.5	$	(650.3	)	$	1,128.2